please give rating
The power rating of a light bulb (such as a 100-W bulb) is the power it...
The power rating of a light bulb (such as a 100-W bulb) is the power it dissipates when connected across a 120-V potential difference. A.What is the resistance of a 100 W bulb? B.How much current does the 100 W bulb draw in normal use? C.What is the resistance of a 60 W bulb? D.How much current does the 60 W bulb draw in normal use?
Course Document... Apps HW-Ch25 Exercise 25.35 The power rating of a light bulb (such as a 100-W bulb) is the power it dissipates when connected across a 120-V potential difference. Part C What is the resistance of a 60 W bulb? Express your answer using two significant figures. VAXD ? R = Request Answer Submit Part D How much current does the 60 W bulb draw in normal use? Express your answer using two significant figures. VOAED ? A I=...
The operating potential difference of a light bulb is 120 V. The power rating of the bulb is 90 W. (a) Find the current in the bulb. A (b) Find the bulb's resistance.
please help me with these 2 questions please all 2 please i need them please Exercise 25.46 14 of 21 Constants Consider the circuit of the figure (Figure 1). Part A 12 resistor? What is the total rate at which electrical energy is dissipated in the 5.0 Express your answer using two significant figures. IVO A20 ? Figure 1 of 1 > Submit Request Answer 1.6 12 16.0V w a b Part B 5.0 12 9.012 1.4 12 8.0V What...
Light bulb A is marked "25 W 120 V" and light bulb B "100 W 120 V"; this means that each bulb converts its respective power when plugged into a constant 120 V source, Find the resistance of each bulb, How long does it take for 1.00 C to pass into bulb A? Is this charge different in any way upon its exit from the bulb versus it entry? Explain, How long does it take for 1.00 J to pass...
6. A 75 W light bulb operates at a potential difference of 95 V. a. What is the current in the bulb? b. What is the resistance of the bulb? C. If the bulb is replaced by a bulb with half of the resistance found in part b, what is its power rating when operated at the same potential?
The bulb is not ohmic, must use "P=VI" for the first part. When a light bulb is connected to the simple circuit shown, it dissipates a power of 60.0 W. (a) Determine the possible values for the current in the circuit. (b) Suppose that the values of the resistor's resistance is varied without changing the bulb's rate of energy dissipation. What is the maximum resistance? (c) If instead the battery's terminal potential is varied without affecting the bulb's power, what...
Consider a lightbulb with listed as "75 W " (75 W of electric power is converted to heat and light when the bulb is connected to a 120 V outlet). If this bulb is connected to a 220-V potential difference (as is used in Europe), how much power does it dissipate?
Two lightbulbs operate on the same current. Bulb A has four times the power output of bulb B. Why is the potential difference across Bulb A higher than across bulb B? What is the ratio of the potential difference across bulb A to that across bulb B? The current in a 120 V reading lamp is 1.6 A . If the cost of electrical energy is $0.075 per kilowatt-hour, how much does it cost to operate the light for an...
1. Find the resistance in ohms of a light bulb that produces 60 W of power when connected to 120 V household current. (5 pts) 2. Indicate if the statements below are true or false: (a) AC currents are changing, and the voltage is constant (b) DC currents are constant, and the voltage is constant (c) The time dependence of AC current and voltage follows a “sin” wave with frequency 60 Hz (d) When several light bulbs are arranged in...